366 Ch evy Ch ase and Woodridge branches . Petworth branch, completing construc- tion . Proviso . Limit of cost in- creased . 49 Stat. 1861. Sewers . Perso nal servi ces . Cle ani ng, rep air , etc. Motor trucks . Main and pipe, etc . Suburban. Motor trucks . Oa on Run Inter- ceptor, construction . Assessment and per- mit work . Mosquit o contro l . Proviso. Transfer to Public Health Service . Sewage treatment pla nt. City refuse . Personal services . Swooping, cleaning, etc . Garbage, dead ani- mals, ashes, etc . 75TH CONGRESS, 1sT SESSION-CH. 403-JUNE 29, 1937 For rent of suitable quarters for branch libraries in Chevy Chase and Woodridge, $4,320 . For completing construction of the Petworth branch library build- ing, including improvement of grounds and necessary furniture and equipment, $105,000 : Provided, That the limit of cost fixed in the A ct of June 23, 1936, is hereby increased from $150, 000 to $18 0,000 . SEWERS For personal services, $180,030 . For cleaning and repairing sewers and basins ; including the replacement of the following motor trucks : One at not to exceed $2,500 ; two at not to exceed $975 each ; and the purchase of one motor truck at not to exceed $2,500 ; and for operation and main- ten ance of th e sewage p umping ser vice, incl uding repai rs to boil ers, machinery, and pumping stations, and employment of mechanics and laborers, purchase of coal, oil, waste, and other supplies, and the maintenance of non-passenger-carrying motor vehicles used in this work, $245,000 . For ma in and pipe se wers an d recei ving ba sins, $ 100,000 . For suburban sewers, including the maintenance of non-passenger- carrying motor vehicles used in this work, and the replacement of the following motor trucks : Two at not to exceed $975 each ; one at not to exceed $750 ; and one at not to exceed $650 ; in all, $150,000 . For commencing construction of the Oxon Run Interceptor to pro vide an outlet for se wage fr om Wash ington Highla nds, $1 69,000 . For assessment and permit work, sewers, including not to exceed $1,000 for purchase or condemnation of rights-of-way for construc- tion, maintenance, and repair of public sewers, $400,000 . For the control and prevention of the spread of mosquitoes in the District of Columbia, including personal services, operation, main- tenance, and repair of motor-propelled vehicles, purchase of oil, and other necessary expenses, $12,000 : Provided, That of the amount here in appr opriate d there may be transf erred, in the intere st of coordinating the work of mosquito control in the District of Colum- bia, not to exceed $4,100 to the Public Health Service of the Treasury Department, the amount so transferred to be available for the objects herein spec ified . Sewage treatment plant : For operation and maintenance, includ- ing salaries and wages of necessary employees, supplies, repairs to buildings and equipment, purchase of electric power, fuel, oil, waste, and other necessary expenses including the maintenance of non- passen ger-carryi ng motor v ehicles us ed in this work, $160 ,000 . COLLECTION AND DISPOSAL OF REFUSE For personal services, $130,000 . For dust prevention, sweeping and cleaning streets, avenues, alleys, and suburban streets, under the immediate direction of the Commis- sioners, including services and purchase and maintenance of equip . ment, rent of storage rooms ; maintenance and repair of garages ; maintenance and repair of non-passenger-carrying motor-propelled vehicles necessary in cleaning streets and purchase of motor-propelled street-cleaning equipment and necessary incidental expenses, $403,730. To enable the Commissioners to carry out the provisions of exist- ing law governing the collection and disposal of garbage, dead ani- mals, ni ght soil, and miscel laneous re fuse and a shes in th e District of Columbia, including inspection ; fencing of public and private prop erty design ated by th e Com missi oners as pu blic dumps ; an d
